RENNtech ECU Hand Held Tuner | HHT | S 63 AMG | W221 | 534HP/485 LB-FT | 6.3L N/A | M156 | MY2008-2010 audi-rs7--4g---2013-2017--4-0l-v8-tfsi-esr8517887 PREORDER NOW LIMITED TIME OFFER

PREORDER NOW LIMITED TIME OFFER - SAVE 10% ON PRE-ORDER OF RTS WHEELS RENNtech TRACK SERIES The RENNtech Track Series is a fully forged wheel derived from RENNtech’s extensive motorsports background and engineering expertise

85 mph W213 - E63 AMG S Sedan Rt ECU Upgrade w/Launch Control 2

Up to 670HP and 840 LB-FT  LB-FT

RPM or driving mode

SL (R230) 300 [2 Filters Required] (HP: 231 | Year: 09 >)

RENNtech ECU Hand Held Tuner | HHT | S 63 AMG | W221 | 534HP/485 LB-FT | 6.3L N/A | M156 | MY2008-2010 audi-rs7--4g---2013-2017--4-0l-v8-tfsi-esr8517887 PREORDER NOW LIMITED TIME OFFERRENNtech ECU HHT (HandHeldTuner) for the 221 S 63 AMG. Up to 534HP and 485LB FT LB FT. Gains: +16HP & +20 LB FT. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU.